/Engine/Plugins/Runtime/XRBase/Source/XRBase/Public/HeadMountedDisplayFunctionLibrary.h
Returns a transform that can be used to convert points from tracking space to world space. Does NOT include the set WorldToMeters scale, as that is added in by the backing XR system to their tracking space poses.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Input|HeadMountedDisplay", Meta=(WorldContext="WorldContext")) static FTransform GetTrackingToWorldTransform ( [UObject](API\Runtime\CoreUObject\UObject\UObject) * WorldContext )